<template>
	<div
			:class="prefixCls"
			class="relative h-[100%] lt-xl:bg-[var(--login-bg-color)] lt-md:px-10px lt-sm:px-10px lt-xl:px-10px"
	>
		<div class="relative mx-auto h-full flex">
			<div
					:class="`${prefixCls}__left flex-1 bg-gray-500 bg-opacity-20 relative p-30px lt-xl:hidden`"
			>
				<!-- 左上角的 logo + 系统标题 -->
				<div class="relative flex items-center text-white">/Login/components/LoginForm.vue
					<img alt="" class="mr-10px h-48px w-48px" src="@/assets/imgs/layout/logo.png"/>
					<span class="text-20px font-bold">{{ underlineToHump(appStore.getTitle) }}</span>
				</div>
				<!-- 左边的背景图 + 欢迎语 -->
				<div class="h-[calc(100%-60px)] flex items-center justify-center">
					<TransitionGroup
							appear
							enter-active-class="animate__animated animate__bounceInLeft"
							tag="div"
					>
						<img key="1" alt="" class="w-350px" src="@/assets/svgs/login-box-bg.svg"/>
						<div key="2" class="text-3xl text-white">{{ t('login.welcome') }}</div>
						<div key="3" class="mt-5 text-14px font-normal text-white">
							{{ t('login.message') }}
						</div>
					</TransitionGroup>
				</div>
			</div>
			<div class="relative flex-1 p-30px dark:bg-[var(--login-bg-color)] lt-sm:p-10px">
				<!-- 右上角的主题、语言选择 -->
				<div
						class="flex items-center justify-between text-white at-2xl:justify-end at-xl:justify-end"
				>
					<div class="flex items-center at-2xl:hidden at-xl:hidden">
						<img alt="" class="mr-10px h-48px w-48px" src="@/assets/imgs/logo.png"/>
						<span class="text-20px font-bold">{{ underlineToHump(appStore.getTitle) }}</span>
					</div>
					<div class="flex items-center justify-end space-x-10px">
						<ThemeSwitch/>
						<LocaleDropdown class="dark:text-white lt-xl:text-white"/>
					</div>
				</div>
				<!-- 右边的登录界面 -->
				<Transition appear enter-active-class="animate__animated animate__bounceInRight">
					<div
							class="m-auto h-full w-[100%] flex items-center at-2xl:max-w-500px at-lg:max-w-500px at-md:max-w-500px at-xl:max-w-500px"
					>
						<!-- 账号登录 -->
						<el-form
								v-show="getShow"
								ref="formLogin"
								:model="loginData.loginForm"
								:rules="LoginRules"
								class="login-form"
								label-position="top"
								label-width="120px"
								size="large"
						>
							<el-row style="margin-right: -10px; margin-left: -10px">
								<el-col :span="24" style="padding-right: 10px; padding-left: 10px">
									<el-form-item>
										<LoginFormTitle style="width: 100%"/>
									</el-form-item>
								</el-col>
								<el-col :span="24" style="padding-right: 10px; padding-left: 10px">
									<el-form-item v-if="loginData.tenantEnable" prop="tenantName">
										<el-input
												v-model="loginData.loginForm.tenantName"
												:placeholder="t('login.tenantNamePlaceholder')"
												:prefix-icon="iconHouse"
												link
												type="primary"
										/>
									</el-form-item>
								</el-col>
								<el-col :span="24" style="padding-right: 10px; padding-left: 10px">
									<el-form-item prop="username">
										<el-input
												v-model="loginData.loginForm.username"
												:placeholder="t('login.usernamePlaceholder')"
												:prefix-icon="iconAvatar"
										/>
									</el-form-item>
								</el-col>
								<el-col :span="24" style="padding-right: 10px; padding-left: 10px">
									<el-form-item prop="password">
										<el-input
												v-model="loginData.loginForm.password"
												:placeholder="t('login.passwordPlaceholder')"
												:prefix-icon="iconLock"
												show-password
												type="password"
												@keyup.enter="getCode()"
										/>
									</el-form-item>
								</el-col>
								<el-col
										:span="24"
										style="
                    padding-right: 10px;
                    padding-left: 10px;
                    margin-top: -20px;
                    margin-bottom: -20px;
                  "
								>
									<el-form-item>
										<el-row justify="space-between" style="width: 100%">
											<el-col :span="6">
												<el-checkbox v-model="loginData.loginForm.rememberMe">
													{{ t('login.remember') }}
												</el-checkbox>
											</el-col>
											<el-col :offset="6" :span="12">
												<el-link style="float: right" type="primary">{{
														t('login.forgetPassword')
													}}
												</el-link>
											</el-col>
										</el-row>
									</el-form-item>
								</el-col>
								<el-col :span="24" style="padding-right: 10px; padding-left: 10px">
									<el-form-item>
										<XButton
												:loading="loginLoading"
												:title="t('login.login')"
												class="w-[100%]"
												type="primary"
												@click="getCode()"
										/>
									</el-form-item>
								</el-col>
								<Verify
										ref="verify"
										:captchaType="captchaType"
										:imgSize="{ width: '400px', height: '200px' }"
										mode="pop"
										@success="handleLogin"
								/>
							</el-row>
						</el-form>
					</div>
				</Transition>
			</div>
		</div>
	</div>
</template>

<script lang="ts" setup>
import {underlineToHump} from '@/utils'

import {ElLoading} from 'element-plus'

import {useDesign} from '@/hooks/web/useDesign'
import {useAppStore} from '@/store/modules/app'
import {useIcon} from '@/hooks/web/useIcon'
import {usePermissionStore} from '@/store/modules/permission'

import * as LoginApi from '@/api/login'
import * as authUtil from '@/utils/auth'
import {ThemeSwitch} from '@/layout/components/ThemeSwitch'
import {LocaleDropdown} from '@/layout/components/LocaleDropdown'
import {LoginStateEnum, useFormValid, useLoginState} from './components/useLogin'
import LoginFormTitle from './components/LoginFormTitle.vue'
import router from '@/router'

defineOptions({name: 'SocialLogin'})

const {t} = useI18n()
const route = useRoute()

const appStore = useAppStore()
const {getPrefixCls} = useDesign()
const prefixCls = getPrefixCls('login')
const iconHouse = useIcon({icon: 'ep:house'})
const iconAvatar = useIcon({icon: 'ep:avatar'})
const iconLock = useIcon({icon: 'ep:lock'})
const formLogin = ref<any>()
const {validForm} = useFormValid(formLogin)
const {getLoginState} = useLoginState()
const {push} = useRouter()
const permissionStore = usePermissionStore()
const loginLoading = ref(false)
const verify = ref()
const captchaType = ref('blockPuzzle') // blockPuzzle 滑块 clickWord 点击文字

const getShow = computed(() => unref(getLoginState) === LoginStateEnum.LOGIN)

const LoginRules = {
  tenantName: [required],
  username: [required],
  password: [required]
}
const loginData = reactive({
  isShowPassword: false,
  captchaEnable: import.meta.env.VITE_APP_CAPTCHA_ENABLE !== 'false',
  tenantEnable: import.meta.env.VITE_APP_TENANT_ENABLE !== 'false',
  loginForm: {
    tenantName: 'wisp',
    username: 'admin',
    password: 'admin123',
    captchaVerification: '',
    rememberMe: false
  }
})

// 获取验证码
const getCode = async () => {
  // 情况一，未开启：则直接登录
  if (!loginData.captchaEnable) {
    await handleLogin({})
  } else {
    // 情况二，已开启：则展示验证码；只有完成验证码的情况，才进行登录
    // 弹出验证码
    verify.value.show()
  }
}
//获取租户ID
const getTenantId = async () => {
  if (loginData.tenantEnable) {
    const res = await LoginApi.getTenantIdByName(loginData.loginForm.tenantName)
    authUtil.setTenantId(res)
  }
}
// 记住我
const getCookie = () => {
  const loginForm = authUtil.getLoginForm()
  if (loginForm) {
    loginData.loginForm = {
      ...loginData.loginForm,
      username: loginForm.username ? loginForm.username : loginData.loginForm.username,
      password: loginForm.password ? loginForm.password : loginData.loginForm.password,
      rememberMe: loginForm.rememberMe ? true : false,
      tenantName: loginForm.tenantName ? loginForm.tenantName : loginData.loginForm.tenantName
    }
  }
}
const loading = ref() // ElLoading.service 返回的实例

// tricky: 配合LoginForm.vue中redirectUri需要对参数进行encode，需要在回调后进行decode
function getUrlValue(key: string): string {
  const url = new URL(decodeURIComponent(location.href))
  return url.searchParams.get(key) ?? ''
}

// 尝试登录: 当账号已经绑定，socialLogin会直接获得token
const tryLogin = async () => {
  try {
    const type = getUrlValue('type')
    const redirect = getUrlValue('redirect')
    const code = route?.query?.code as string
    const state = route?.query?.state as string
    
    const res = await LoginApi.socialLogin(type, code, state)
    authUtil.setToken(res)
    
    router.push({path: redirect || '/'})
  } catch (err) {
  }
}

// 登录
const handleLogin = async (params) => {
  loginLoading.value = true
  try {
    await getTenantId()
    const data = await validForm()
    if (!data) {
      return
    }
    
    let redirect = getUrlValue('redirect')
    
    const type = getUrlValue('type')
    const code = route?.query?.code as string
    const state = route?.query?.state as string
    
    const res = await LoginApi.login({
      // 账号密码登录
      username: loginData.loginForm.username,
      password: loginData.loginForm.password,
      captchaVerification: params.captchaVerification,
      // 社交登录
      socialCode: code,
      socialState: state,
      socialType: type
    })
    if (!res) {
      return
    }
    loading.value = ElLoading.service({
      lock: true,
      text: '正在加载系统中...',
      background: 'rgba(0, 0, 0, 0.7)'
    })
    if (loginData.loginForm.rememberMe) {
      authUtil.setLoginForm(loginData.loginForm)
    } else {
      authUtil.removeLoginForm()
    }
    authUtil.setToken(res)
    if (!redirect) {
      redirect = '/'
    }
    // 判断是否为SSO登录
    if (redirect.indexOf('sso') !== -1) {
      window.location.href = window.location.href.replace('/login?redirect=', '')
    } else {
      push({path: redirect || permissionStore.addRouters[0].path})
    }
  } finally {
    loginLoading.value = false
    loading.value.close()
  }
}

onMounted(() => {
  getCookie()
  tryLogin()
})
</script>

<style lang="scss" scoped>
$prefix-cls: #{$namespace}-login;

.#{$prefix-cls} {
  overflow: auto;
  
  &__left {
    &::before {
      position: absolute;
      top: 0;
      left: 0;
      z-index: -1;
      width: 100%;
      height: 100%;
      background-image: url('@/assets/svgs/login-bg.svg');
      background-position: center;
      background-repeat: no-repeat;
      content: '';
    }
  }
}
</style>
